From US President Donald Trump's all-out push for fossil fuels to political squabbles in Europe, governments are retreating on their climate promises. But most people around the world still see global warming as a serious threat.

The UN estimated Tuesday that nations' carbon-cutting pledges imply a far-from-sufficient 10-percent emissions cut by 2035, cautioning that it was unable to provide a robust global overview after most countries failed to submit their plans on time.

An Australian freshwater Murray cod has surprised scientists by swimming a marathon 860 kilometres (530 miles) along a major river system -- believed to be a record for the species.